Talking-machine.



T. KRAEMER.

TALKING MACHINE.

APPLICATlQN FILED MAR.3,1915` Panted Ap); 2%, NV?,

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guna/M150@ Wmme@ PATENT to TALKING-'MACHIN E.

Application fil-ed March phia, and State of Pennsylvania, have invented certain Improvements in Talking- ,Machines of whichuthe following is a speciiication.

My invention relates more particularly to sound boxes for talking machines and my leading object is to provide such soundboxes with improved universal means operable without change with laterally or vertically -undulating records.

In the accompanying drawings, Figure 1 is a plan view of a talking machine embodying my improvements; F ig. Q is a bottoni plan view of the sound box shown in top plan view in Fig. l; and Fig. 3 is a broken .side elevation ot' the construction shown in Fig. 2.

The mechanismI` in the form illustrated in the drawings, comprises the case l, the turn table 2 revoliibly mounted thereon and the record disk 3 mounted on the turn table, in y combination with the tone arm 4 provided with the sound box 5 having the diaphragm disposed transversely to the tone arm section i and approximately parallel to the disk 3f A lever 7, disposed transversely to the record or grooves beneath it, is fulcrumed through the peripheral .beaiings 8 (on the sound box) which are provided with the adjustable pivots or arbors 9 for engaging the bearings T ot' the flever, whereby the latter is adapted to oscillate substantially at right angles to the diaphragm, which is oscillated b v the levers arm Tb connected therewith at or near the center thereof. The arm 7b is oscillated by the levers oppositely extending arm 7C, which is provided with a socket T for receiving a needle or stvlus I0 and with a 4set screw ll-t'or holding the needle in the socket. the needle being offset from the axis of the lever to which, as also to the diaphragm, it is transversely disposed.

' In this construction, the action upon the needle, induced by a vertically undulating groove or by a laterally undulating groove is transverse and eccentric to the axis of oscillation of the lever, which is therefore oscillated by either action to effect the vibration of the diaphragm 6.

While in the form of construction here adopted for illustrating the inventionthe Specication of Letters Patent'.

Patented Apr. 2d, 391% ,1915. seriai ivo. iiez.

axis of the lever lies in a plane oliset from and substantially parallel to the plane passing through the -center of the diaphragm and the axis of oscillation of the tone arm and the needle isf inclined to the verticahit will be understood that these, aswell as other features ot' the construction, may be modified within the scope of the?v invention, which comprehends generic means for translating forces imposed upon a needle `or stylus, whether by laterally or vertically undulating records or grooves, so that such forces will have a componentor components acting transversely to andupon the diaphragm to effect the normal vibration thereof. The construction shown has the advantage, however, of etfecting not only the specified primary object of the invention, but provides for a recognized advantageous disposition of the diaphragm with reference to the record and the tone arm.

The expression universal mechanism, as used in the claims is intended to mean a mechanism that will translate without necessity forv adjustment the transverse actions of orforees inducedy by vertically and laterally formed records or record grooves upon needles and impose a normal or substantially vertical torce upon the sound box diaphragm` Having described my invention, I claim:

l. In atalking machine, a sound box having a diaphragm, a` lever fulcrumed intermediate its length on said sound boX, and a stylus connected to the outer arm of said lever,v offset from the axis thereof and disposed transversely to said axis, in combination with a tone arm to which said sound box is immovably connected, so that lateral or vertical iindulations of records revolving in engagement with said stylus will rock said lever.

Q. In a talking machine. a sound box having a diaphragm. a lever having a t'ulcrum on said sound box, said lever having one arm iixed to said diaphragm and a. transverse socket carried by the other, a stylus disposed in said socket transversely to said lever, and a tone aim to which said sound box is connected so that laterally and vertically undulated records will act on said stylus and vibrate said diaphragm'normally, said lever extending transversely to said tone arm.

3. In a talking machine, a sound box having a, diaphragm, a lever fulcrumed inter- .intermediate its length on said mediate its length on a side of said sound box, said lever having an arm connected with said diaphragm and an oppositely extending arm provided With a stylus offset from and disposed transversely of said lever and adapted to coact with a record, and a tone arm to which said sound box is immovably connected so that lateral or vertical undulations of la record coacting ivith said stylus will rock said lever.

-l. In a talking machine, an oscillatory tonearm, a sound box connected to said tone arm, a lever having an axis of oscillation on a side ot said sound box, said axis extending transversely to the length of'said lever, said lever having one arm connected with said diaphragm and another arm extendingbeyond said sound box, and a stylus connected with the arm or' said lever beyond said sound box, said sound box being movable in a circular are by the oscillation of said tone arm, and the axis of said lever vbeing movable through positions substantially parallel to radii of said arc.

5. In a talking machine, an .oscillatory tone arm, a sound box fixed to said tone arm with the face of its diaphragm disposed substantially parallel' to the face of a record adapted for use therewith, a lever fulcrumed sound box with an arm thereof connected with said diaphragm, said lever having an axis of oscillation extending in approximately the same direction as the tangent to the record groove at the point-thereof engaged by the stylus, and said stylus connected with an arm ot said lever disposed oppositely to said arm first named.

G. In a talking machine, an oscillatory tone arm, a sound box fixed to said tone arm with its diaphragm disposed in a substantially horizontal plane, a lever having a ful? crum on said sound box offset laterally from said tone arm, said lever oscillating on said fulcrum about an axis extending substantially parallel to said tone arm, and a stylus fixed to said lever transversely thereto.

7.In a talking machine, an oscillatory tone arm, a sound box fixed to said tone arm with the face of its diaphragm disposed substantially parallel to the face of a record adapted for use therewith, a lever having a fulcrum on said sound box offset laterally to the axis from said tone arm AWith an axis of oscillation approximately parallel to a tangent to the-record groove at the oint of contact of the stylus therewith, and a stylus fixed to an arm of said lever and extending transversely thereto, whereby transverse forces applied to said stylus oscillate' said lever and vibrate said diaphragm normally.

8. In a talking machine, a sound box having a diaphragm, a lever ulcrumed intermediate its length on said sound box, and a stylus connected to the outer arm of said lever, offset rom'the axis 'thereof and disposed transversely to said axis, in combination with a member to which said sound box is inmovably connected, so that lateral or vertical undulations of records revolving in engagement with said stylus will rock said lever.

9. In a talking machine, a sound box having a diaphragm, a lever fulerumed intermediate its length on a side of said sound box, said lever having an arm connected with said diaphragm and an oppositely extending arm provided with a stylus offset from and disposed transversely to the axis of said lever and adapted to coact with a record, and a member to which said sound box is immovably connected so that lateral or vertical undulations ofi' a record coacting with said stylus will` rock said lever.

10. In a talking machine, an oscillatory member, a sound box connected to said member. a lever having an axis of oscillation on a side of' said sound box, saidyaxis extending. transversely to the length of said lever, said lever having one arm connected with said diaphragm and another arm extending beyond said sound box, and a stylus connected with the arm of said lever beyond said sound box` said sound box being movable in a circular are by the oscillation of said member, and the axis of said lever being movable through positions substantially parallel to radii of said arc.

In testimony whereof` I have hereunto set.

my name this 27th day of February, 1915, in the presence of the subscribing Witnesses.

Jos. G. DENNY, Jr., C. N. BUTLER.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

